class_docstr: Parent class for bias direction wrappers.
code: def __call__(self, module):
      raise NotImplementedError
  
imports: import torch
  from typing import Union, Optional
  from os import PathLike
  from allennlp.fairness.bias_direction import BiasDirection, PCABiasDirection, PairedPCABiasDirection, TwoMeansBiasDirection, ClassificationNormalBiasDirection
  from allennlp.fairness.bias_utils import load_word_pairs, load_words
  from allennlp.common import Registrable
  from allennlp.data.tokenizers.tokenizer import Tokenizer
  from allennlp.data import Vocabulary
label_desc: Use image node_id 2 for calling the BiasDirectionWrapper obj's underlying member method code with example usage: obj.__call__(module) without return types